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Zheng X, Zhu Y, Zhao Z, Chu Y, Yang W. The role of amino acid metabolism in inflammatory bowel disease and other inflammatory diseases. Front Immunol 2023; 14:1284133. [PMID: 37936710 PMCID: PMC10626463 DOI: 10.3389/fimmu.2023.1284133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/10/2023] [Indexed: 11/10/2023] Open
Abstract
Inflammation is a characteristic symptom of the occurrence and development of many diseases, which is mainly characterized by the infiltration of inflammatory cells such as macrophages and granulocytes, and the increased release of proinflammatory factors. Subsequently, macrophage differentiates and T cells and other regulated factors exhibit anti-inflammatory function, releasing pro- and anti-inflammatory factors to maintain homeostasis. Although reports define various degrees of metabolic disorders in both the inflamed and non-inflamed parts of inflammatory diseases, little is known about the changes in amino acid metabolism in such conditions. This review aims to summarize amino acid changes and mechanisms involved in the progression of inflammatory bowel disease (IBD) and other inflammatory diseases. Since mesenchymal stem cells (MSCs) and their derived exosomes (MSC-EXO) have been found to show promising effects in the treatment of IBD and other inflammatory diseases,their potential in the modulation of amino acid metabolism in the treatment of inflammation is also discussed.
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Affiliation(s)
- Xiaowen Zheng
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Yi Zhu
- The People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, Jiangsu, China
| | - Zihan Zhao
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ying Chu
- Changzhou Key Laboratory of Molecular Diagnostics and Precision Cancer Medicine, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Wenjing Yang
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, China
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2
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Liu X, Liu X, Wang X, Shang K, Li J, Lan Y, Wang J, Li J, Yue B, He M, Fan Z. Multi-omics analysis reveals changes in tryptophan and cholesterol metabolism before and after sexual maturation in captive macaques. BMC Genomics 2023; 24:308. [PMID: 37286946 DOI: 10.1186/s12864-023-09404-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 05/24/2023] [Indexed: 06/09/2023] Open
Abstract
Rhesus macaques (Macaca mulatta, RMs) are widely used in sexual maturation studies due to their high genetic and physiological similarity to humans. However, judging sexual maturity in captive RMs based on blood physiological indicators, female menstruation, and male ejaculation behavior can be inaccurate. Here, we explored changes in RMs before and after sexual maturation based on multi-omics analysis and identified markers for determining sexual maturity. We found that differentially expressed microbiota, metabolites, and genes before and after sexual maturation showed many potential correlations. Specifically, genes involved in spermatogenesis (TSSK2, HSP90AA1, SOX5, SPAG16, and SPATC1) were up-regulated in male macaques, and significant changes in gene (CD36), metabolites (cholesterol, 7-ketolithocholic acid, and 12-ketolithocholic acid), and microbiota (Lactobacillus) related to cholesterol metabolism were also found, suggesting the sexually mature males have stronger sperm fertility and cholesterol metabolism compared to sexually immature males. In female macaques, most differences before and after sexual maturity were related to tryptophan metabolism, including changes in IDO1, IDO2, IFNGR2, IL1Β, IL10, L-tryptophan, kynurenic acid (KA), indole-3-acetic acid (IAA), indoleacetaldehyde, and Bifidobacteria, indicating that sexually mature females exhibit stronger neuromodulation and intestinal immunity than sexually immature females. Cholesterol metabolism-related changes (CD36, 7-ketolithocholic acid, 12-ketolithocholic acid) were also observed in female and male macaques. Exploring differences before and after sexual maturation through multi-omics, we identified potential biomarkers of sexual maturity in RMs, including Lactobacillus (for males) and Bifidobacterium (for females) valuable for RM breeding and sexual maturation research.
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Affiliation(s)
- Xu Liu
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Xuyuan Liu
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Xinqi Wang
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Ke Shang
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Jiawei Li
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Yue Lan
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Jiao Wang
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Jing Li
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Bisong Yue
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, China
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Miao He
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences, Chengdu, Sichuan, China.
| | - Zhenxin Fan
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610065, China.
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Yang L, Chu Z, Liu M, Zou Q, Li J, Liu Q, Wang Y, Wang T, Xiang J, Wang B. Amino acid metabolism in immune cells: essential regulators of the effector functions, and promising opportunities to enhance cancer immunotherapy. J Hematol Oncol 2023; 16:59. [PMID: 37277776 DOI: 10.1186/s13045-023-01453-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/13/2023] [Indexed: 06/07/2023] Open
Abstract
Amino acids are basic nutrients for immune cells during organ development, tissue homeostasis, and the immune response. Regarding metabolic reprogramming in the tumor microenvironment, dysregulation of amino acid consumption in immune cells is an important underlying mechanism leading to impaired anti-tumor immunity. Emerging studies have revealed that altered amino acid metabolism is tightly linked to tumor outgrowth, metastasis, and therapeutic resistance through governing the fate of various immune cells. During these processes, the concentration of free amino acids, their membrane bound transporters, key metabolic enzymes, and sensors such as mTOR and GCN2 play critical roles in controlling immune cell differentiation and function. As such, anti-cancer immune responses could be enhanced by supplement of specific essential amino acids, or targeting the metabolic enzymes or their sensors, thereby developing novel adjuvant immune therapeutic modalities. To further dissect metabolic regulation of anti-tumor immunity, this review summarizes the regulatory mechanisms governing reprogramming of amino acid metabolism and their effects on the phenotypes and functions of tumor-infiltrating immune cells to propose novel approaches that could be exploited to rewire amino acid metabolism and enhance cancer immunotherapy.
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Affiliation(s)
- Luming Yang
- Chongqing University Medical School, Chongqing, 400044, People's Republic of China
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Zhaole Chu
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Meng Liu
- Chongqing University Medical School, Chongqing, 400044, People's Republic of China
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Qiang Zou
- Chongqing University Medical School, Chongqing, 400044, People's Republic of China
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Jinyang Li
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Qin Liu
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China
| | - Yazhou Wang
- Chongqing University Medical School, Chongqing, 400044, People's Republic of China.
| | - Tao Wang
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China.
| | - Junyu Xiang
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China.
| | - Bin Wang
- Department of Gastroenterology and Chongqing Key Laboratory of Digestive Malignancies, Daping Hospital, Army Medical University (Third Military Medical University), 10# Changjiang Branch Road, Yuzhong District, Chongqing, 400042, People's Republic of China.
- Institute of Pathology and Southwest Cancer Center, Key Laboratory of Tumor Immunopathology of Ministry of Education of China, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, People's Republic of China.
- Jinfeng Laboratory, Chongqing, 401329, People's Republic of China.
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Riaz B, Islam SMS, Ryu HM, Sohn S. CD83 Regulates the Immune Responses in Inflammatory Disorders. Int J Mol Sci 2023; 24:ijms24032831. [PMID: 36769151 PMCID: PMC9917562 DOI: 10.3390/ijms24032831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Activating the immune system plays an important role in maintaining physiological homeostasis and defending the body against harmful infections. However, abnormalities in the immune response can lead to various immunopathological responses and severe inflammation. The activation of dendritic cells (DCs) can influence immunological responses by promoting the differentiation of T cells into various functional subtypes crucial for the eradication of pathogens. CD83 is a molecule known to be expressed on mature DCs, activated B cells, and T cells. Two isotypes of CD83, a membrane-bound form and a soluble form, are subjects of extensive scientific research. It has been suggested that CD83 is not only a ubiquitous co-stimulatory molecule but also a crucial player in monitoring and resolving inflammatory reactions. Although CD83 has been involved in immunological responses, its functions in autoimmune diseases and effects on pathogen immune evasion remain unclear. Herein, we outline current immunological findings and the proposed function of CD83 in inflammatory disorders.
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Affiliation(s)
- Bushra Riaz
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - S. M. Shamsul Islam
- Department of Microbiology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Hye Myung Ryu
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Seonghyang Sohn
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Microbiology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Correspondence:
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Amino Acid Metabolism in Rheumatoid Arthritis: Friend or Foe? Biomolecules 2020; 10:biom10091280. [PMID: 32899743 PMCID: PMC7563518 DOI: 10.3390/biom10091280] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023] Open
Abstract
In mammals, amino acid metabolism has evolved to act as a critical regulator of innate and adaptive immune responses. Rheumatoid arthritis (RA) is the most common form of inflammatory arthropathy sustained by autoimmune responses. We examine here the current knowledge of tryptophan and arginine metabolisms and the main immunoregulatory pathways in amino acid catabolism, in both RA patients and experimental models of arthritis. We found that l-tryptophan (Trp) metabolism and, in particular, the kynurenine pathway would exert protective effects in all experimental models and in some, but not all, RA patients, possibly due to single nucleotide polymorphisms in the gene coding for indoleamine 2,3-dioxygenase 1 (IDO1; the enzyme catalyzing the rate-limiting step of the kynurenine pathway). The function, i.e., either protective or pathogenetic, of the l-arginine (Arg) metabolism in RA was less clear. In fact, although immunoregulatory arginase 1 (ARG1) was highly induced at the synovial level in RA patients, its true functional role is still unknown, possibly because of few available preclinical data. Therefore, our analysis would indicate that amino acid metabolism represents a fruitful area of research for new drug targets for a more effective and safe therapy of RA and that further studies are demanding to pursue such an important objective.
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Brown J, Robusto B, Morel L. Intestinal Dysbiosis and Tryptophan Metabolism in Autoimmunity. Front Immunol 2020; 11:1741. [PMID: 32849620 PMCID: PMC7417361 DOI: 10.3389/fimmu.2020.01741] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 06/30/2020] [Indexed: 12/12/2022] Open
Abstract
The development of autoimmunity involves complex interactions between genetics and environmental triggers. The gut microbiota is an important environmental constituent that can heavily influence both local and systemic immune reactivity through distinct mechanisms. It is therefore a relevant environmental trigger or amplifier to consider in autoimmunity. This review will examine recent evidence for an association between intestinal dysbiosis and autoimmune diseases, and the mechanisms by which the gut microbiota may contribute to autoimmune activation. We will specifically focus on recent studies connecting tryptophan metabolism to autoimmune disease pathogenesis and discuss evidence for a microbial origin. This will be discussed in the context of our current understanding of how tryptophan metabolites regulate immune responses, and how it may, or may not, be applicable to autoimmunity.
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Affiliation(s)
- Josephine Brown
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, United States
| | - Brian Robusto
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, United States
| | - Laurence Morel
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, United States
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7
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Alahdal M, Duan L, Ouyang H, Wang D. The role of indoleamine 2,3 dioxygenase 1 in the osteoarthritis. Am J Transl Res 2020; 12:2322-2343. [PMID: 32655775 PMCID: PMC7344072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
Osteoarthritis (OA) is a chronic degenerative joint disease and a leading cause of disability. It involves articular cartilage destruction and a whole joint inflammation. In spite of OA pathogenesis is still unclear, new studies on the OA pathophysiological aetiology and immunomodulation therapy continuously achieve significant advances with new concepts. Here, we focus on the indoleamine-2,3-dioxygenase1 (IDO1) activity in the osteoarthritis (OA), which is one of the noticeable enzymes in the synovial fluid of arthritis patients. It was recognized as an essential mediator of autoreactive B and T cell responses in rheumatoid arthritis (RA) and an interesting therapeutic target against RA. However, the role IDO1 plays in the OA pathogenesis hasn't been discussed. The new OA experimental analysis evidenced IDO1 overexpression in the synovial fluid of OA patients, and recent studies reported that IDO1 metabolites were found higher in the OA synovial fluid than RA and spondyloarthropathies (SpA) patients. Moreover, the positive relation of IDO1 metabolites with OA pain and joint stiffness has been confirmed. Thus, the IDO1 plays a pivotal role in the pathogenesis of OA. In this review, the role IDO1 plays in the OA pathogenesis has been deeply discussed. It could be a promising target in the immunotherapy of OA disease.
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Affiliation(s)
- Murad Alahdal
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Shenzhen Second People’s Hospital (The First Hospital Affiliated to Shenzhen University, Health Science Center)Shenzhen 518035, P. R. China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of MedicineHangzhou, P. R. China
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic TechnologyShenzhen 518035, P. R. China
| | - Li Duan
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Shenzhen Second People’s Hospital (The First Hospital Affiliated to Shenzhen University, Health Science Center)Shenzhen 518035, P. R. China
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic TechnologyShenzhen 518035, P. R. China
| | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Zhejiang University School of MedicineHangzhou, P. R. China
| | - Daping Wang
- Shenzhen Key Laboratory of Tissue Engineering, Shenzhen Laboratory of Digital Orthopedic Engineering, Shenzhen Second People’s Hospital (The First Hospital Affiliated to Shenzhen University, Health Science Center)Shenzhen 518035, P. R. China
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic TechnologyShenzhen 518035, P. R. China
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Ketelhuth DFJ. The immunometabolic role of indoleamine 2,3-dioxygenase in atherosclerotic cardiovascular disease: immune homeostatic mechanisms in the artery wall. Cardiovasc Res 2020; 115:1408-1415. [PMID: 30847484 DOI: 10.1093/cvr/cvz067] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/30/2019] [Accepted: 03/05/2019] [Indexed: 01/05/2023] Open
Abstract
Coronary heart disease and stroke, the two most common cardiovascular diseases worldwide, are triggered by complications of atherosclerosis. Atherosclerotic plaques are initiated by a maladaptive immune response triggered by accumulation of lipids in the artery wall. Hence, disease is influenced by several non-modifiable and modifiable risk factors, including dyslipidaemia, hypertension, smoking, and diabetes. Indoleamine 2,3-dioxygenase (IDO), the rate-limiting enzyme in the kynurenine pathway of tryptophan (Trp) degradation, is modulated by inflammation and regarded as a key molecule driving immunotolerance and immunosuppressive mechanisms. A large body of evidence indicates that IDO-mediated Trp metabolism is involved directly or indirectly in atherogenesis. This review summarizes evidence from basic and clinical research showing that IDO is a major regulatory enzyme involved in the maintenance of immunohomeostasis in the vascular wall, as well as current knowledge about promising targets for the development of new anti-atherosclerotic drugs.
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Affiliation(s)
- Daniel F J Ketelhuth
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden.,Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, Univ. of Southern Denmark, J. B. Winsløws Vej 21(3), Odense C, Denmark
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Mondanelli G, Iacono A, Allegrucci M, Puccetti P, Grohmann U. Immunoregulatory Interplay Between Arginine and Tryptophan Metabolism in Health and Disease. Front Immunol 2019; 10:1565. [PMID: 31354721 PMCID: PMC6629926 DOI: 10.3389/fimmu.2019.01565] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 06/24/2019] [Indexed: 12/30/2022] Open
Affiliation(s)
- Giada Mondanelli
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Alberta Iacono
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Massimo Allegrucci
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Paolo Puccetti
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Ursula Grohmann
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
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Royzman D, Andreev D, Stich L, Rauh M, Bäuerle T, Ellmann S, Boon L, Kindermann M, Peckert K, Bozec A, Schett G, Steinkasserer A, Zinser E. Soluble CD83 Triggers Resolution of Arthritis and Sustained Inflammation Control in IDO Dependent Manner. Front Immunol 2019; 10:633. [PMID: 31001257 PMCID: PMC6455294 DOI: 10.3389/fimmu.2019.00633] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 03/08/2019] [Indexed: 12/29/2022] Open
Abstract
Interference with autoimmune-mediated cytokine production is a key yet poorly developed approach to treat autoimmune and inflammatory diseases such as rheumatoid arthritis. Herein, we show that soluble CD83 (sCD83) enhances the resolution of autoimmune antigen-induced arthritis (AIA) by strongly reducing the expression levels of cytokines such as IL-17A, IFNγ, IL-6, and TNFα within the joints. Noteworthy, also the expression of RANKL, osteoclast differentiation, and joint destruction was significantly inhibited by sCD83. In addition, osteoclasts which were cultured in the presence of synovial T cells, derived from sCD83 treated AIA mice, showed a strongly reduced number of multinuclear large osteoclasts compared to mock controls. Enhanced resolution of arthritis by sCD83 was mechanistically based on IDO, since inhibition of IDO by 1-methyltryptophan completely abrogated sCD83 effects on AIA. Blocking experiments, using anti-TGF-β antibodies further revealed that also TGF-β is mechanistically involved in the sCD83 induced reduction of bone destruction and cartilage damage as well as enhanced resolution of inflammation. Resolution of arthritis was associated with increased numbers of regulatory T cells, which are induced in a sCD83-IDO-TGF-β dependent manner. Taken together, sCD83 represents an interesting approach for downregulating cytokine production, inducing regulatory T cells and inducing resolution of autoimmune arthritis.
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MESH Headings
- Animals
- Antibodies, Blocking/pharmacology
- Antigens, CD/immunology
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/immunology
- Arthritis, Experimental/pathology
- Cytokines/immunology
- Female
- Immunoglobulins/immunology
- Indoleamine-Pyrrole 2,3,-Dioxygenase/antagonists & inhibitors
- Indoleamine-Pyrrole 2,3,-Dioxygenase/immunology
- Inflammation/drug therapy
- Inflammation/immunology
- Inflammation/pathology
- Joints/immunology
- Joints/pathology
- Membrane Glycoproteins/immunology
- Mice
- Signal Transduction/drug effects
- Signal Transduction/immunology
- Solubility
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/pathology
- Transforming Growth Factor beta/antagonists & inhibitors
- Transforming Growth Factor beta/immunology
- Tryptophan/analogs & derivatives
- Tryptophan/pharmacology
- CD83 Antigen
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Affiliation(s)
- Dmytro Royzman
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Darja Andreev
- Department of Internal Medicine 3, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Lena Stich
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Manfred Rauh
- Department of Pediatrics and Adolescent Medicine, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Tobias Bäuerle
- Institute of Radiology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Stephan Ellmann
- Institute of Radiology, Universitätsklinikum Erlangen, Erlangen, Germany
| | | | - Markus Kindermann
- Department of Internal Medicine 1, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Katrin Peckert
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Aline Bozec
- Department of Internal Medicine 3, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3, Universitätsklinikum Erlangen, Erlangen, Germany
| | | | - Elisabeth Zinser
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
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11
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Mondanelli G, Iacono A, Carvalho A, Orabona C, Volpi C, Pallotta MT, Matino D, Esposito S, Grohmann U. Amino acid metabolism as drug target in autoimmune diseases. Autoimmun Rev 2019; 18:334-348. [DOI: 10.1016/j.autrev.2019.02.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 10/30/2018] [Indexed: 12/14/2022]
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12
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Volpi C, Fallarino F, Mondanelli G, Macchiarulo A, Grohmann U. Opportunities and challenges in drug discovery targeting metabotropic glutamate receptor 4. Expert Opin Drug Discov 2018; 13:411-423. [DOI: 10.1080/17460441.2018.1443076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Claudia Volpi
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | | | - Giada Mondanelli
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Antonio Macchiarulo
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Ursula Grohmann
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
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13
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Chenna Narendra S, Chalise JP, Biggs S, Kalinke U, Magnusson M. Regulatory T-Cells Mediate IFN-α-Induced Resistance against Antigen-Induced Arthritis. Front Immunol 2018. [PMID: 29515584 PMCID: PMC5826073 DOI: 10.3389/fimmu.2018.00285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Objective CD4+FoxP3+CD25+ regulatory T-cells (Tregs) are important for preventing tissue destruction. Here, we investigate the role of Tregs for protection against experimental arthritis by IFN-α. Methods Arthritis was triggered by intra-articular injection of methylated bovine serum albumin (mBSA) in wild-type mice, Foxp3DTReGFP+/− mice [allowing selective depletion of Tregs by diphtheria toxin (DT)] and CD4-Cre+/− IFNA1R flox/flox mice (devoid of IFNAR signaling in T-cells) earlier immunized with mBSA, with or without treatment with IFN-α or the indoleamine 2,3-dioxygenase (IDO)-metabolite kynurenine. Tregs were depleted in DT-treated Foxp3DTReGFP+/− mice and enumerated by FoxP3 staining. Suppressive capacity of FACS-sorted CD25+highCD4+ Tregs was tested in vivo by adoptive transfer and ex vivo in cocultures with antigen-stimulated CFSE-stained T-responder (CD25−CD4+) cells. IDO was inhibited by 1-methyl tryptophan. Results Both control mice and mice devoid of IFNAR-signaling in T helper cells were protected from arthritis by IFN-α. Depletion of Tregs in the arthritis phase, but not at immunization, abolished the protective effect of IFN-α and kynurenine against arthritis. IFN-α increased the number of Tregs in ex vivo cultures upon antigen recall stimulation but not in naïve cells. IFN-α also increased the suppressive capacity of Tregs against mBSA-induced T-responder cell proliferation ex vivo and against arthritis when adoptively transferred. The increased suppressive activity against proliferation conferred by IFN-α was clearly reduced by in vivo inhibition of IDO at immunization, which also abolished the protective effect of IFN-α against arthritis. Conclusion By activating IDO during antigen sensitization, IFN-α activates Tregs, which prevent arthritis triggered by antigen rechallenge. This is one way by which IFN-α suppresses inflammation.
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Affiliation(s)
- Sudeep Chenna Narendra
- Division of Rheumatology, Autoimmunity and Immune Regulation, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | | | - Sophie Biggs
- Division of Rheumatology, Autoimmunity and Immune Regulation, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Ulrich Kalinke
- Twincore, Zentrum für Experimentelle und Klinische Infektionsforschung, Hannover, Germany
| | - Mattias Magnusson
- Division of Rheumatology, Autoimmunity and Immune Regulation, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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Baumgartner R, Forteza MJ, Ketelhuth DFJ. The interplay between cytokines and the Kynurenine pathway in inflammation and atherosclerosis. Cytokine 2017; 122:154148. [PMID: 28899580 DOI: 10.1016/j.cyto.2017.09.004] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 09/01/2017] [Accepted: 09/02/2017] [Indexed: 12/20/2022]
Abstract
The kynurenine pathway (KP) is the major metabolic route of tryptophan (Trp) metabolism. Indoleamine 2,3-dioxygenase (IDO1), the enzyme responsible for the first and rate-limiting step in the pathway, as well as other enzymes in the pathway, have been shown to be highly regulated by cytokines. Hence, the KP has been implicated in several pathologic conditions, including infectious diseases, psychiatric disorders, malignancies, and autoimmune and chronic inflammatory diseases. Additionally, recent studies have linked the KP with atherosclerosis, suggesting that Trp metabolism could play an essential role in the maintenance of immune homeostasis in the vascular wall. This review summarizes experimental and clinical evidence of the interplay between cytokines and the KP and the potential role of the KP in cardiovascular diseases.
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Affiliation(s)
- Roland Baumgartner
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden.
| | - Maria J Forteza
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden
| | - Daniel F J Ketelhuth
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute and Karolinska University Hospital, SE-17176 Stockholm, Sweden
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Kelly A, Houston SA, Sherwood E, Casulli J, Travis MA. Regulation of Innate and Adaptive Immunity by TGFβ. Adv Immunol 2017; 134:137-233. [PMID: 28413021 DOI: 10.1016/bs.ai.2017.01.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Immune regulation by cytokines is crucial in maintaining immune homeostasis, promoting responses to infection, resolving inflammation, and promoting immunological memory. Additionally, cytokine responses drive pathology in immune-mediated disease. A crucial cytokine in the regulation of all aspects of an immune response is transforming growth factor beta (TGFβ). Although best known as a crucial regulator of T cell responses, TGFβ plays a vital role in regulating responses mediated by virtually every innate and adaptive immune cell, including dendritic cells, B cells, NK cells, innate lymphoid cells, and granulocytes. Here, we review our current knowledge of how TGFβ regulates the immune system, highlighting the multifunctional nature of TGFβ and how its function can change depending on location and context of action.
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Affiliation(s)
- Aoife Kelly
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Stephanie A Houston
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Eleanor Sherwood
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Joshua Casulli
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Mark A Travis
- Manchester Collaborative Centre for Inflammation Research, University of Manchester, Manchester, United Kingdom; Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom; Manchester Immunology Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom.
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